Soda fountain



Dec. 14 1926.

' 1,610,626 J. SMITH l A SODA FONTAIN Filed Augustll 1925 2 Sheets-Sheetl r INVENTOR'.

ATTORNEYS Patented Dec. 14, 1926.

UNITED y STATES 'JOSEPH SMITH, OF MILWAUKEE, WlSCOll'SIN'.l

SQDA FOUNTAIN.

Application led, August 13. 1925. Serial No. 49,971.

This invention relates to improvements in' soda fountains.

It is the object of the invention to provide means for refrigerating anentire soda fountain installation in simple, inexpensive and convenientmanner by using, Without mechanical alteration, a refrigerating unitprimarily intended and heretofore used solely for keepin r ice cream andthe like.

`oda fountain installations vary so Widely in their requirements that ithas become the practice among the manufactures ofrefrigerating units tomake up such units merely for t-he storage of ice cream and the likewhich is kept in large cans of uniform'size, and for which the unit mayreadily be constructed.. Such -standard units have been installed inlarge ,numbers throughout the' i country, and by reason of theirrectangular form they may readily be fitted into any desired type ofsoda fountain. Theproprietors of a soda fountain containing such a unit,however, have heretofore usually resorted tofthe use of ice and salt forthe purpose of refrigerating milk, sygups, soda Water. and the like,which inust be kept cold but which are not cared for Aby the standardrefrigerating mechanisms used for keeping ice cream.

. fountain, however, which receive the syrups,

lt will be understood that such a standard refrigerating unit for icevcreair is a comparatively expensive machine, and that it is only bystandardization that its cost can be kept low enough to make it acommerically successful device. The amount of refrigeration required forfruit Syrups, milk, soda Water and the like, is comparatively so smallthat it does not Warrant the expenditure which would be required ifevery refrigerating unit were made a special rather than a standardizedJob. `The portions of the soda carbonized Water, and other articleswhich i require this limited degree ofv refrigeration r are usuallyconstructed to suitV the requirements of a. given installation, andit'is the primary purpose of the present invention to provide simplemeans in which these special parts of the fountain may be so constructedas to partake of the `refrigeration afforded by a standard unitassociated therewith and Withoutin any Wayrequiring the mechanicalmodification of such a unit.

. Figure 3 is an enlarged detail section tak- `en on the line indicatedat 3--3 in Figure 1.

Figure t is an enlarged detail on the same scale as Figure 3,takenlongitudinally through the fountain installation andlooking towardthe front thereof.

Figure 5 is a view taken on the section indicated at 5 5 in Fi ure 4.

Like parts are identi ed by the same refer.

-it .Will be understood that they are made in various sizes according tothe capacity desired for ice cream storage. The standardization consistsprimarily in the omission from vall such iceless cabinets of means forrefrigerating anything but ices or ice cream. The Aparticular cabinetshown is known as an eight hole device, there being eight of the'receptacles 13 into which ice cream or its equivalent may he lowered forrefrigeration.

In association with the standardized iceless cabinet, designated in itsentirety by reference character 10, l have shown the refrigerator chest15, faucets 16 vfor carbonized and other Water, and a housing l? for theseveral jars 18 in Which fruit Syrups and the like are carried,V A sink19 and drainboard V2O complete the' fountain, which is enclosed by awall 21 and a counter 22 in thc usual manner.

.constructed as to overhang` unit 10 and to be acted upon by 'ceptacle13 therein.

It is particularly to-be noted that they for the' purposes of. thisinvention, filled housing 17 forthe fruit syrup jars 18 is so with brineor a similar liquid which may the centrifugal lpump 30 cover one of theholes which leads to a re and which will not freeze within the rangeThis arrangement is of temperatures employed. Pump 30 is clearlyillustrated in Figures 1 to 4 incluadapted to circulate brine from theaforesive.` The overhangiiig portion of housing said receptacle 13through the interior of' 17 provides means in accordance with thishousiiig17 and chamber 15., and thereby the invention for concealing`pipes, whereby heat fruit syrupS, bottled goods, and carbonated from thefruit and milk compartments and Wider are kept retrigerated to therequired the like in the special installation is transdegl@ Wlth verylittle eXpenSe and with the ferred to the brine in vat 12,y from` whichvlSS ln CnpnClty O'f but a Single hole in the it can be disposed of bythe artificial rcfrigl'efllglntlng ugnlt l0. erating mechanism housed incasing 11. U-motor 20 and .pump 30 may be placed An electric motor 25is. controlled by a 111 any desired position, but I pre'fer tole-V.SWtCh housed in Casing 25 The Switch is cate them as indicated, behindthe drain actuad by my desired type of thermostat board of sink 2O andbeneath the cover 4S 27, the thermostatr being preferably located WhichS readily reinovableto afford access Within Chamber so .that the motor25 is to the motor: 71th this disposition of the adapted to be set inoperation when the tem- PflltS the SHUT@ apparatus 'may convenientlypel'ature in Chalnbel rises above a given be LSSQnrlbled but I V1-.Sht()A ll'lilke Clell' point for which the thermostatis set. Conthat the391161111 arrangement h @leln diS- versely, the thermostat will openswitch 26 Closed 1S adapted 13.01.` USG 1n pliLCtlCally any to stop themotor when the temperature typ@ 0f Soda muni/am and the SPGCIC d@- inchamber 15 falls below a predetermined tn lls 0f th? Present deVlCe maybe Chfrmf-ed point l without. atecting the successful operation Aof Themotor drives a centrifugal pump 30, the deVle. y y the inlet pipe 31 ofwhich extends through T116 tact that' housing` '17 overhang-s thehousing 17 immediately beneath jars 13 standard retrigeratmg unit andcovers the therein and thence projects downwardly at IQl 1191 111 011BCQInel' thereof provides a 32 to a position whereit is receivedintofmwellent Way fOIzdlSpOSlng neatly of the the receptacle 13 whichunderlies the over hanging portion of casing 17 The outlet of pumpcommunicates with a discharge pipe 34 which leads intochainber 15 to aseries of coils 35 in the bottomof the rear portion of such chamber.. Ifdesired, the chamber may be divided into two' parts by a low partitionwall 36, and a connecting pipe 37 may straddle suoli wall and lead to aseries of coils 38 on the front side thereof.

I prefer to ll tlierear portion of chamber 15 with brine to the levelpermitted by partition wa'll 3G, and in this brine I locate one or morecylinders 39 which communicate with pipes 40 which supply carbonatedwater and withpipes 41 through which the carbonated water passes fromthe cylinders 39 to the dispensing faucets 1G. I use the frontportioiiof chamber 15 as a dry storage cabinet into which jars- 44depend. The lower portion of the cabinet is made accessible by aremovable cover 45 and iii-ay contain milk,cream, and vany 'otherbottled goods for which refrigerated storage is rcquired.

From the coils 38 pipe 46 leads to the back'of chamber 15 and thence.passes up wardly out of such chamber into the housing 17 to a pointwhence it can discharge back into the receptacle 13 which is overhung bysuch housing.

.The receptacle 13 which is intended in the normal use of therefrigerating unit 10 .to be filled with ice creamor the like is,

pipe which is used@ for the circulation' of brine from the ice lcreamreceptacle 13 through the other compartments yto be cooled.

` The refrigerating unit'10 ordinarily has its own thermostat, wherebyits temperature remains constant, and I have found that the heatintroduced into "at 12 by the auxiliary circulation system comprisingthe subject matter of my invention is but little more than the heatwhich would be introduced into vvat 12 if the brine-filled receptacle 13were used'in the ordinary way for the storage vof ice cream.

It is usual to adjust the thermostat which controls the temperature ofthe iceless refrigerating unit for ice cream in such manner that. thetemperature of such cabinet is maintained considerably below thefreezing `point otwater. Such low temperatures, on -the other hand, arenot desired for the refrigeration of bottled goods and fortherefi-igei-ation of the fruit Syrups and carbonated water. It is,therefore, a convenience to have a secondary refrgerating system in heattransferring relation to the system of the commercialunit and providedwith its own thermostat, whereby its temperatures may be maintained atva temperature above that of the unit itself.

I claim: i

1. In a device of the character described, the combination with aprimary refriger ated chamber adapted to receive food conlll) tainers,of a secondary refrigerated chamber also nadapted to receive foodcontainers and provided with -circulation ducts extending into theprimary chamber,` said ducts being adapted for the circulation 0f arefrigerating fluid from the secondary chamber through a portion of theprimary chamber independently of the refrigerat-ing medium in thelatter, the capacity of said circulation ducts being such as to obtain amoderate refrigeration `of the secondary chamber as compared .with thatof the primary chamber.

2. In a device of the character described, the combination of primaryand secondary' refrigerating chambers each provided with a heatabsorbing fluid, a fluid container in the primary chamber in sealedrelation to the refrigerating fluid in said chamber, and a motor forcirculating Huid from said container through the secondary chamber topromote a transfer of heat to the container by convection and to therefrigerant in the primary chamber by conduction through the walls ofthe container.

3. In a device of the character described, the combination with arefrigerator cabinet having upwardly opening chambers adapted to receiveice cream and the like, of a secondary refrigcrating system includingpassages for liquidrefrigerant leading to and from one of said chambersin liquid tight relation to other portions of said cabinet.

Il. In a device of the character described, the combination with arefrigerator cabinet having upwardly opening chambers adapted to receiveice cream and the like, of a secondary refrigerating system includingone of said chambers and mechanically independent of said cabinet, saidsecondary system comprising acirculatory duct for liuid having one ofits ends extending into thev chamber included in.said secondary system,and means for the artificial circulation iuid in said duct.

5. In a device of the character described, the combination with arefrigerator cabinet having upwardly opening chambers adapt` ed toreceive ice cream and the like of a secondary refrigerating systemincluding one of said chambers and otherwiseA substantiallyaindependentof said cabinet, said system comprising a circulatory duct for fluidhaving one of its ends extending into Said chamber, and means for theartificial I chanically refrigerated ice cream cabinet having upwardlyopening chambers to receive ice cream and the like,together with acompartment for .the storage of supplies other than ice cream, a pipeextending through said compartment and into one of said chambers, saidchamber being adapted to be filled with a liquid, and means whereby suchliquid may circulate through said pipe-'to-receive heat from saidcompartment and deliver it'to the chamber with which said pipe isconnected.

. 7. In a device of the character'described, the combination with amechanically refrigerated cabinet unit provided with upwardly openingcompartment for the storage of ice cream and the like, of a secondaryunit com- V prising a compartment for the refrigeration of fountainsupplies other than -ice cream, a housing connected With said secondaryunit and overhanging one of the chambersof said first mentioned unit,and a system of fluid containing ducts adapted for heat transfer fromsaid compartment to said last mentioned chamber and including a pipe fextending from the interior of said chamber into said compartment and areturn duct leading to the interior of said housing.

8. In 'a device ofthe character described,

.through portions of the secondary storage chamber and portions of Saidcabinet, a temperature 'controlled motor responsive to temperatureconditions in the secondary chamber for operating the pump, and

whereby the pumped liquid may be circulated intermittently under varyingtempera' ture conditions in the secondary chamber for transfer of heatto the primary chamber.

9. In a device of the character described, the combination with acabinet adapted to Within the liquid containing portions of the Icabinet, of a secondary storage chainber, a liquid container, a pumphaving pipe connections leading to and from said liquid container forcirculating a different liquid tlirough portions of the secondarystorage chamber and portions of said cabinet, a motorfor operating thepump, and a thermostat in said secondary chamber in controlling relationto the motor, whereby the pumped liquid may be circulated intermittentlyunder varying temperature conditions in the secondary chamber fortransfer of heat to the primary chamber, said secondary chamber having aportion overhanging one of the coinpartments in said cabinet, andthrough which the suction pipe of the pump extends; and

' a, storage chamber through which the deliv- -ery pipe extends from the-pump'to saidr container, whereby the secondary chamber and the vstoragechamber may be refrlgerh lated in proportionto the number of heat`,units transferred by condlicton through the JOSEPH SMITH.

